Buggy code:
public class GuidedDTDRLPersistence { public static GuidedDTDRLPersistence getInstance ( ) { } public String marshal ( GuidedDecisionTable52 dt ) { } void doActions ( List < BaseColumn > allColumns , List < ActionCol52 > actionCols , TemplateDataProvider rowDataProvider , List < DTCellValue52 > row , RuleModel rm ) { } private void doAction ( List < BaseColumn > allColumns , LimitedEntryBRLActionColumn column , List < GuidedDTDRLPersistence . LabelledAction > actions , TemplateDataProvider rowDataProvider , List < DTCellValue52 > row , RuleModel rm ) { } private void doAction ( List < BaseColumn > allColumns , BRLActionColumn column , List < GuidedDTDRLPersistence . LabelledAction > actions , TemplateDataProvider rowDataProvider , List < DTCellValue52 > row , RuleModel rm ) { } private boolean hasVariables ( BRLActionColumn column ) { } private void addAction ( IAction action , List < GuidedDTDRLPersistence . LabelledAction > actions ) { } private void doAction ( List < GuidedDTDRLPersistence . LabelledAction > actions , ActionWorkItemInsertFactCol52 ac , String cell ) { } private void doAction ( List < GuidedDTDRLPersistence . LabelledAction > actions , ActionInsertFactCol52 ac , String cell ) { } private void doAction ( List < GuidedDTDRLPersistence . LabelledAction > actions , ActionWorkItemSetFieldCol52 sf , String cell ) { } private void doAction ( List < GuidedDTDRLPersistence . LabelledAction > actions , ActionSetFieldCol52 sf , String cell ) { } private void doAction ( List < GuidedDTDRLPersistence . LabelledAction > actions , ActionRetractFactCol52 rf , String cell ) { } private void doAction ( List < GuidedDTDRLPersistence . LabelledAction > actions , ActionWorkItemCol52 wi , String cell ) { } private GuidedDTDRLPersistence . LabelledAction findByLabelledAction ( List < GuidedDTDRLPersistence . LabelledAction > actions , String boundName ) { } void doConditions ( List < BaseColumn > allColumns , List < CompositeColumn < ? > > conditionPatterns , TemplateDataProvider rowDataProvider , List < DTCellValue52 > row , List < List < DTCellValue52 > > data , RuleModel rm ) { } private void doCondition ( List < BaseColumn > allColumns , LimitedEntryBRLConditionColumn column , List < IPattern > patterns , TemplateDataProvider rowDataProvider , List < DTCellValue52 > row , RuleModel rm ) { } private void doCondition ( List < BaseColumn > allColumns , BRLConditionColumn column , List < IPattern > patterns , TemplateDataProvider rowDataProvider , List < DTCellValue52 > row , RuleModel rm ) { if ( ! ( hasVariables ( column ) ) ) { final BRLConditionVariableColumn variableColumn = column . getChildColumns ( ) . get ( 0 ) ; final int index = allColumns . indexOf ( variableColumn ) ; final DTCellValue52 dcv = row . get ( index ) ; <START_BUG> if ( dcv . getBooleanValue ( ) ) { <END_BUG> for ( IPattern pattern : column . getDefinition ( ) ) { patterns . add ( pattern ) ; } } } else { for ( IPattern pattern : column . getDefinition ( ) ) { boolean addPattern = true ; Map < InterpolationVariable , Integer > ivs = new HashMap < InterpolationVariable , Integer > ( ) ; RuleModelVisitor rmv = new RuleModelVisitor ( pattern , ivs ) ; rmv . visit ( pattern ) ; if ( ( ivs . size ( ) ) > 0 ) { for ( InterpolationVariable variable : ivs . keySet ( ) ) { String value = rowDataProvider . getTemplateKeyValue ( variable . getVarName ( ) ) ; if ( "" . equals ( value ) ) { addPattern = false ; break ; } } } if ( addPattern ) { patterns . add ( pattern ) ; } } } } private boolean hasVariables ( BRLConditionColumn column ) { } private void doCondition ( List < BaseColumn > allColumns , Pattern52 pattern , List < IPattern > patterns , List < DTCellValue52 > row , List < List < DTCellValue52 > > data , RuleModel rm ) { } String makeInList ( String cell ) { } private boolean no ( String operator ) { } private IPattern findByFactPattern ( List < IPattern > patterns , String boundName ) { } void doAttribs ( List < BaseColumn > allColumns , List < AttributeCol52 > attributeCols , List < DTCellValue52 > row , RuleModel rm ) { } void doMetadata ( List < BaseColumn > allColumns , List < MetadataCol52 > metadataCols , List < DTCellValue52 > row , RuleModel rm ) { } String getName ( String tableName , Number num ) { } boolean validCell ( String c ) { } private class LabelledAction { String boundName ; IAction action ; } private FieldConstraint makeSingleFieldConstraint ( ConditionCol52 c , String cell ) { } private FieldConstraint makeSingleFieldConstraint ( ConditionCol52 c , List < BaseColumn > allColumns , List < List < DTCellValue52 > > data ) { } }

Fix:
if ( ( dcv != null ) && ( dcv . getBooleanValue ( ) ) ) {